Social decision-making driven by artistic explore-exploit tension
Kayhan Ozcimder, Biswadip Dey, Alessio Franci, Rebecca Lazier, Daniel Trueman and Naomi Ehrich Leonard,
Interdisciplinary Science Reviews, Vol. 44, No. 1, 2019. DOI: 10.1080/03080188.2018.1544806.
Paper PDF with SI
Link to paper online at Interdisciplinary Science Reviews
We studied social decision-making in the rule-based improvisational dance
There Might Be Others, where dancers make in-the-moment compositional choices.
Rehearsals provided a natural test-bed with communication restricted to non-verbal cues.
We observed a key artistic explore-exploit tension in which the dancers switched between
exploitation of existing artistic opportunities and riskier exploration of new ones. We
investigated how the rules influenced the dynamics using rehearsals together with a model
generalized from evolutionary dynamics. We tuned the rules to heighten the tension and
modeled nonlinear fitness and feedback dynamics for mutation rate to capture the observed
temporal phasing of the dancers' exploration-versus-exploitation. Using bifurcation
analysis, we identified key controls of the tension and showed how they could shape the
decision-making dynamics of the model much like turning a ``dial'' in the instructions
to the dancers could shape the dance. The investigation became an integral part of the
development of the dance.
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